Flow in Conduits

1
Flow in Conduits

• P M V Subbarao
• Associate Professor
• Mechanical Engineering Department
• IIT Delhi

An important infrastructure for Industrialization
..
2
Entrance and developed flows
3
Dimensional Analysis
4
(No Transcript)
5
(No Transcript)
6
Shear-Stress Distribution Across a Pipe Section
7
(No Transcript)
8
Laminar Flow in Pipes
9
(No Transcript)
10
Shear-Stress Distribution in Laminar Flow
11
(No Transcript)
12
(No Transcript)
13
Criterion for Laminar or Turbulent Flow in a Pipe
14
Turbulent Flow in Pipes
15
(No Transcript)
16
Moody Chart
17
Flow at Pipe Inlets and Losses From Fittings

• For real pipe systems in addition to friction
  head loss these are additional so called minor
  losses due to
• 1. entrance and exit effects
• 2. expansions and contractions
• 3. bends, elbows, tees, and other fittings
• 4. valves (open or partially closed)
• For such complex geometries we must rely on
  experimental data to obtain a loss coefficient

18
(No Transcript)
19
Drag Lift
20
(No Transcript)
21
(No Transcript)
22
(No Transcript)
23
(No Transcript)